Single Shielded Radial Bearing for Pallet Jacks

Frequently Asked Questions

Q: What are the specifications of the 220050311 bearing assembly?
A: The 220050311 is a single shielded radial bearing assembly with a 20 mm bore, 47 mm outer diameter, and 14 mm width. The bearing uses high-carbon chromium steel balls per ASTM 52100, a pressed steel cage, and tin-plated steel shield. It comes pre-lubricated with grease.

Q: Which manual pallet jack models is the 220050311 bearing compatible with?
A: The 220050311 bearing assembly is designed for manual pallet jack load and steer wheel support. It fits models from Crown, Toyota, Raymond, Yale, and Hyster. Confirm the 20 mm bore and 47 mm outer diameter dimensions match your equipment before ordering.

Q: What makes the 220050311 bearing assembly durable?
A: Durability comes from three factors: high-carbon chromium steel balls that resist wear and deformation under load, a pressed steel cage that maintains ball spacing and reduces friction, and tin-plated steel shielding that protects against contamination. Pre-lubrication with grease provides immediate friction reduction when installed.

Q: Does the 220050311 bearing require re-lubrication?
A: The bearing comes pre-lubricated with grease for initial operation. Bearing lifespan depends on load conditions and environment. In standard indoor warehouse use, most bearings operate 3 to 5 years before replacement. Replace the bearing if you observe excess play in the wheel, unusual noise, or resistance to rotation.

Q: What is the cross-reference part number for the 220050311?
A: The OEM part number is 220050311. If you need equivalent bearing assemblies with 20 mm bore and 47 mm outer diameter specifications, verify bore, outer diameter, and width dimensions match. Confirm cage material and shield configuration match your original part before substituting.